Too Cold in Vehicle

Too Cold in Vehicle

Test Description

Step 1 - Step 10:

Step 11 - Step 21:

The step numbers below refer to the step numbers on the diagnostic table.
3. This checks for A/C compressor clutch always ON.
7. This test is to ensure the cooling system is operating normally.
10. The aspirator tube connects to the rear of the HVAC control module. The aspirator tube is used to draw air past the inside air temperature sensor.